Planoottaph co



l. HECHENBLEIKNER.

EXHAUSTER.

APPLICATION FILED NOV. 2. 1916.

1,308,756. Patented July 8, 1919.

3 SHEETS-SHEET I.

swan/km THE COLUMBIA PLANOURAPH 60-, WASHINGTON, n. C.

l. HECHENBLEIKNER.

EXHAUSTER.

APPLICATION FILED NOV. 2. 1918.

3 SHEETS-SHEET 2- ,1 308,756; Patented July 8, 1919.

awe/whom .1 MM

I w I Gum/" THE COLUMBIA PLANOURAPH'CO., WAIPHNOTON, D- C- I. H'ECHENBLEIKNER.

EXHAUSTER.

APPLICATION FILED NOV.'2. 1918.

1,308,756. Patented July 8, 1919.

3 SHEETS-SHEET 3.

a Fig. 4

THE COLUM IA PLANOGRAPH- co., WASHINGTON, h. c.

- l UNITED STATES PATENT OFFICE.

I NGENI I IN IIECHENBLETKNER, orYcHARLorrE, NORTH CAROLINA, ASSIGNOR 'ro CHEMICAL CONSTRUGTIONCOMPANY, or CHARLOTTE, NORTH CAROLINA, A

: ooRroRA'rIoN. ornon'rn CAROLINA.-

E XHAUSTER.

'To-allfwhom it maf concern." v

Be it known that I, INGENUIN HECHEN- BLEIKNER, a citizen of the United States, residing at Charlotte, in the county of Meeklenburg and State of NorthyCarolina, has

invented certain new and useful Improvements in- Exhausters, of which the following I is a specification. 1

1 hibited or objectionable because of i the corrosiveaction of the gases. Hence,-masonry or'earthenware casmgs are advisable and the L Object of the present invention is toprovide a fani'casing of this type, suitable for use with. nitrous or other-acid gases, and con-1 structed in ,such manner that either oneor two fansnmay bezemployed, controlling valves-being 'providedto regulate or direct the fiowofgas according to the amount del i I sired. or to thefan or fans employed. .25

The structureenrbodies a pair of fan chambers between which is an inlet or supchamber. Theconstruction is characterized by the use of masonry or earthenware parts ply chamber with suitable valves therein I v controlling the flow therefrom to'either or both of the fans; and valved outlet. passa es are also provided leading to a common outlet in the main.

a valves being removed. Fig. 2 is a section In the accompanying drawings, Figure 1 is a sect1on on the line 1-1 of Fig. 2, the

. on the line 2-2 of Fig. 1. Fig. 3 is a section onv the line 3j3 of Fig. 1. Fig. l is a section on the line44 of Fig. 1, and Fig. 5 is a section on the line 55 of Fig.1.

The casing comprises a substantially reci tan ular structure indicated at 6, made of brielrwork or masonry,strengthened by outside tierods 7. 8 is an inlet pipe at one end of the structure and 29 is an outlet pipe at the opposite end. The inlet pipe 8 leads to I: :the bottom of a supply or distributing chamber 9 which is located between a pair of fan chambers 10, with suitable partition walls 11*betweenr The fan chambers are arched or curved to conform to' the shape of i the rotary fan or blower used. 3 The fans.

may be of any suitable type and are omitted because they form no part of the invention.

Patented July 8, 1919.

Application filed November 2, 1918 Serial No. 260,901.

The top of the fan chambers is preferably madeof relatively large blocks 10 which canbe removed through the openings 10 in the top of the masonry to permit access to the chambers, the openings being ordinarily closed byslabs 10. So-called chemical brick will be employed for the masonry, and each side wall of the casing has an opening 10 for the fan shaft of the respective fans, removable wedge blocks 10 filling a space above the bearing blocks to permit removal or insertion of the fan shaft.

Each fan chamber has a central inlet and a tangential outlet, the latter being indicated at 12. The inlets connect the intermediate supply or distributing chamber 9 with the fan chambers 10, and each inlet consists ofa stoneware elbow pipe or hell 13 which extends respectively through the Walls 11, with their mouths presented upwardly in the intermediate chamber 9. These mouths are belled, as indicated at 14, to form seats for the stoneware valves 15, each of which is connected to an operating rod 16 extending throughthe top of the casing. Any suitable means may be providedfor operating the rods toopen or close the valves, and as shown especially in Fig. 1, the elbow pipes 13 are offset at their inner ends to bring the mouths in longitudinal alinement in the supply chamber. This saves space and material. The tangential outlets 12 from the bottom of the respective fan chambers lead to el'bows 25 which open upwardly into an outlet chamber 26 at the end of the casing, the outlet pipe 29 communicating with this chamber at the middle thereof. The mouths of the elbows 25 are belled and form seats for the earthenware valves 17, which are connected to rods 18, extending through the top of the chamber and operated by any suitable means, as by hand wheels 19. By-pass bends 20 and 21 are set in the bottom of the casing, connecting the chambers 9 and 10 and 9 and 26. These provide drainage from the chambers 10 and 26 to the chamber 9, the bottom of which is sloped toward the inlet sufficiently to carry off condensation, which may be tapped off from the inlet pipe line in any suitable way.

In the operation of the exhauster, either one or both fans may be used. When one is used, the appropriate valves 15 and 17 are opened and the other valves closed. The

gases then enter through the inlet 8 to the supply chamber 9 and elbow 13 to the eye of the fan and are forced out through the passages 12 and 25 to the chamber 26 and thence to the outlet pipe 29. Ordinarily only one fan will be used, the other being held in reserve. In addition to distributing the gases to either fan, the chamber 9 serves as a condensing chamber to collect the condensation which is sometimes considerable, from acid fumes, and the inlet elbows 13 are located above the floor of this chamber so that condensation is not conducted, in any considerable amount, to the fan chambers. As shown in Fig. 5, the elbows 13 are supported at one end in the walls 11 and at the opposite end by the other wall 11, sothat they are rigidly held in position with the valve seats gper-e fectly level so that the valves will fit tightly. A similar effective support is provided for the elbows 25 which are built .solidly in the masonry as shown especially in Fig. A.

I claim: v

1. A fan casing having a fan chamber therein anda supply and condensation chamber beside the fan chamber, an elbow pipe, from the latter chamber to the former, the.

the latter chamber to the former chambersv respectively, the ends of said inlet pipes in the supply chamber-having valve seats and Copies of this patent maybe obtained for in the supply chamber being provided with a valve seat, and supported at opposite sides by the opposite sidewalls of said chamber, and a valve cooperating with said seat.

"necting said chambers, the end of the pipe 4. A fan casing having a pair of fan,

chambers at opposite sides thereof, an intermediate supply chamber between saidchambers, an outlet chamber extending across the ends of said chambers, valved passages con'- nectingthe supply chamber to the respective fan chambers, and valved passages connecting the fan chambers to the outlet chamber.

'5. A fan casing having supply and fan chambers standing side by side therein, and anoutlet chamber adjacent the ends thereof, and drainage pipes connecting the fan and outlet chambers to the supply chamber.

6. Afan casing having a :tan chamber at each-side thereof and an intermediate supply and condensation chamber between the fan chambers, an elbow pipe connecting the sup ply chamber toeach fanchamber, said elbow pipes having mouths located in longitudinal a-linement with each other in the supply chamber and supported at opposite sides by the opposite walls of said chamber, andvalves cooperating with said mouths. In testimony whereof, affix my signafive cents each, hy addressing the Commissioner. of latents, Washington, D10. 

